There were complications during the birth, and the child died. However, a subspace accident had duplicated Voyager and the duplicated child was returned to Samantha when her counterpart was killed. (VOY: "Deadlock") The child was later named Naomi.

It was thanks to Ensign Wildman that Chakotay was able to remind Neelix, who had a crisis of faith, that his family was now the crew of Voyager, especially Wildman's daughter Naomi, who was very fond of him indeed and was actually Neelix's god-daughter. (VOY: "Mortal Coil")

On an away mission, the Delta Flyer, crewed by Wildman, Tom Paris and Tuvok, was damaged by an ion storm, crashed, and was buried under rock on a deserted planetoid. Wildman was seriously hurt, bleeding internally. With their air running out, Wildman recorded a goodbye message to her daughter. Just before the air was depleted, the Flyer was dug out and transported to Voyager, saving the crew. After her injuries healed, Wildman visited a holoprogram, accompanied by Naomi, Neelix and CaptainJaneway. (VOY: "Once Upon a Time")

The character of Samantha Wildman was named after a little girl who died in an accident, and whose organs were subsequently donated to the wife of writer Jimmy Diggs. [1] The girl's parents told Diggs that she liked animals, so Diggs made Wildman a xenobiologist. (Star Trek Encyclopedia, 3rd ed., p. 561)

Chronologically, Ensign Wildman does not appear again after the events of "Once Upon a Time". She does appear in the later-produced episode "Fury", though only in footage that is actually set earlier than "Once Upon a Time", in 2371. However, Wildman is also mentioned in various episodes that not only were produced after "Once Upon a Time" but are also set after that installment, where she is referred to as still being alive and well.